56 + 9-(18/6) *2 (PEMDAS)
56+9-3*2
56+9-6
65-6
59
You use PEMDAS, and solve for what's inside the parenthesis first, and then you go by order of operations. You do multiplication next. Lastly, you go from left to right because all you have left is addition and subtraction. Your end result is 59